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300001421 is a prime number
BaseRepresentation
bin10001111000011…
…010100010001101
3202220111122120202
4101320122202031
51103300021141
645434023245
710301653466
oct2170324215
9686448522
10300001421
11144385565
1284577b25
134a1cb645
142bbb3d6d
151b50e49b
hex11e1a88d

300001421 has 2 divisors, whose sum is σ = 300001422. Its totient is φ = 300001420.

The previous prime is 300001399. The next prime is 300001441. The reversal of 300001421 is 124100003.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242923396 + 57078025 = 15586^2 + 7555^2 .

It is an emirp because it is prime and its reverse (124100003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 300001421 - 210 = 300000397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300001441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150000710 + 150000711.

It is an arithmetic number, because the mean of its divisors is an integer number (150000711).

Almost surely, 2300001421 is an apocalyptic number.

It is an amenable number.

300001421 is a deficient number, since it is larger than the sum of its proper divisors (1).

300001421 is an equidigital number, since it uses as much as digits as its factorization.

300001421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 300001421 is about 17320.5490963768. The cubic root of 300001421 is about 669.4340070407.

Adding to 300001421 its reverse (124100003), we get a palindrome (424101424).

The spelling of 300001421 in words is "three hundred million, one thousand, four hundred twenty-one".